[15a-4F-1~9] 6.2 Carbon-based thin films

[15a-4F-1] Multi Graphene Growth on Pencil Drawing Sliver-Halide Print Paper Irradiated by Femtosecond Laser

〇Satoru Kaneko^1,2, Yoshitada Shimizu¹, Takeshi Rachi¹, Chihiro Kato¹, Satomi Tanaka¹, Manabu Yasui¹, Daishi Shiojiri², Akifumi Matsuda², Mamoru Yoshimoto² (1.Kanagawa Ind. Tech. Center, 2.Tokyo Inst. Tech.)

Keywords:pencil,print paper,femtosecond laser

A pencil was used to draw a variety of paper such as PC print paper, PC photo paper, kent paper and silver halide print paper. Raman spectroscopy was measured on the area drawn by the pencil with grade from 9H to 10B, and verified graphite peak (G and D) on the paper drawn by the pencil with grade from 4H to 10B. After irradiation of scanning femtosecond laser, paper for silver halide prints drawn with 10B lead pencil remained relatively flat surface compared to the other papers, and Raman spectra showed a large G peak with less intensity of D peak together with 2D peak.